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christian-bromannchristian-bromann
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add iframe example
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7 files changed

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‎iframe.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Frame Demo</title>
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<script src="/scripts/actionLogger.js" defer></script>
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</head>
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<body>
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<h1>Frame Demo</h1>
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<p>Check the console to see where the clicks happen.</p>
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<pre>not in frame</pre>
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<iframe id=A src="iframeA.html" style="width: 100%; height: 12em;"></iframe>
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<script>
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setTimeout(() => {
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const a = document.getElementById("A");
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a.insertAdjacentHTML("afterend", `<iframe id=B src="iframeB.html" style="width: 100%;"></iframe>`)
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}, 1000);
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</script>
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<iframe id=C src="iframeC.html" style="width: 100%;"></iframe>
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</body>
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</html>

‎iframeA.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>IFrame A</title>
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<script src="/scripts/actionLogger.js" defer></script>
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</head>
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<body>
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<h2>IFrame A</h2>
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<pre>index 0, position 0</pre>
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<iframe id=A1 src="iframeA1.html" style="width: 40%"></iframe>
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<iframe id=A2 src="iframeA2.html" style="width: 40%"></iframe>
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</body>
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</html>

‎iframeA1.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>IFrame A1</title>
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<script src="/scripts/actionLogger.js" defer></script>
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</head>
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<body>
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<h3>IFrame A1</h3>
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<pre>index 0, position 0</pre>
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</body>
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</html>

‎iframeA2.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>IFrame A2</title>
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<script src="/scripts/actionLogger.js" defer></script>
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</head>
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<body>
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<h3>IFrame A2</h3>
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<pre>index 1, position 1</pre>
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</body>
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</html>

‎iframeB.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>IFrame B</title>
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<script src="/scripts/actionLogger.js" defer></script>
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</head>
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<body>
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<h2>IFrame B</h2>
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<p><em>added asynchronously</em></p>
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<pre>index 2, position 1</pre>
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</body>
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</html>

‎iframeC.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>IFrame C</title>
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<script src="/scripts/actionLogger.js" defer></script>
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</head>
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<body>
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<h2>IFrame C</h2>
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<pre>index 1, position 2</pre>
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</body>
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</html>

‎scripts/actionLogger.js

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// @ts-check
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/**
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* @param {Window} context
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* @returns {Window[]}
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*/
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function getFramePath(context) {
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if(!context.frameElement) return [];
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return [...getFramePath(context.parent), context];
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}
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/** @param {Window} context */
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function getFrameIndex(context) {
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return Array.from(context.parent.frames).indexOf(context);
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}
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/** @param {HTMLIFrameElement} iframe */
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function getFrameDomPosition(iframe) {
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return [...iframe.ownerDocument.querySelectorAll("iframe")].indexOf(iframe);
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}
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/**
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* @param {MouseEvent} ev
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*/
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const logAction = (ev) => {
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const framePath = getFramePath(window);
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const frameElementsPath = framePath.map(win => /** @type {HTMLIFrameElement} */ (win.frameElement)).filter(el => !!el);
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if(!frameElementsPath.every(el => (el.tagName === "IFRAME"))) console.error("Not all elements are iframes", frameElementsPath);
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console.log(ev.type, ev.target);
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console.log("framePath", framePath);
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console.log("frameElementsPath", frameElementsPath);
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console.log("frameIndex", framePath.map(getFrameIndex));
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console.log("frameDomPosition", frameElementsPath.map(getFrameDomPosition));
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console.log("")
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}
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window.addEventListener("click", logAction);

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